Elevatable scoop control mechanism



Jan. 16, 1951 E. B. WAGNER ET AL ELEVATABLE SCOOP CONTROL MECHANISM 5Sheets-Sheet 1 Filed Dec. 17, 1946 INVENTORS W A8 M e g 0 J BY g.

A tiorne Jan. 16, 1951 E. B. WAGNER ET AL 2,538,400

ELEVATABLE SCOOP CONTROL MECHANISM Filed Dec. 17, 1946 3 Sheets-Sheet 2fi 4 INVENTORS Hera/c1 A. Wagner BY EJJie B Wagner A fiorney Jan. 16,1951 WAGNER ET AL 2,538,400

ELEVATABLE SCOOP CONTROL MECHANISM Filed Dec. 17, 1946 5 Sheets-Sheet 37. 79 /o 02 a FY' /06 INVENTORS. Harv/cl .4. Wagner BY EJJie BM/a gner'Attorney Pafentecl Jan. 16, 1951 ED 51m ES PATEN OFF CE:

Eddie B; WagnerandHaf-oldA. Wagner;

Portland, Oregfl 5 The present invntibn' relafie's to the ai-t=ofhandling "materials; the ihi enfiibn comprising a" material' -handiihgmahi'ne; prferab ly the ma hifi'e' being of the 'autbm'etive or selfpropelling' types It is to be app fieiate d that the inventionherdisclbsed and claiined may beuiiil'izetl in a' is-taiiionary type ofmachine adapied to be permanentlylecajteel in wiiiglepbsitiiin or' movedf om place '06- pla ce 21nd."-'-'fi5;e' F in locatibfis off-use; butthat-it i pfefrfed that thednvenfion b'e'ih cerpdratd ih an automotivevehicle;-

-The purpese of the pre'sefifi'ihvenfidri is toprm vide av'new -a.ndimprevd m'eha-nism for raising gmd lbWr-ing"a -matrialhafidfihg device"albng substantiallyvertia1 tower; the materialhandling device beingcapwhl of-substitution 0f' 0ne=type-for another-type? Far-"example,- thedev ibe may compri-se arscoep adapted to scoop coal; gravel; sand,grainsand o'th'er ''m2teri'a1s' 0f the sime' general nature; elvatethese'eop'eri lo'a-d 0f scooping position under the force of gravity, and

tfieapplication-of power"-to'-the =device controllingmechanism will; beeffective "first; to elevatethe metteri al handlingdevice456anupr'i'g-ht or ma tel ialearrying position,- and thereafter to elevatethedevice "alongfih towerup'onwhichthedvic 11501911115; (01. fle -120):

comprising a, cable a prising 2; eable adaiptew wOund'fr'd if u of tlim-terla afil' lih der 'matiiml cohti" corporatewthefei- I Fig. 2 is' affdht elvafiibh bfthe taker-e Fig. 5 is a View in elevation, with partsbroken away, taken substantially from the plane cut by the line 55 ofFig. 2;

Fig. 6 is a horizontal section taken from line 6-5 of Fig. 5; and

Fig. 7 is a vertical section taken from the line l--'! of Fig. 5.

The invention as illustrated and described comprises an automotivevehicle generally indicated by the numeral l having an engine thereinfor the purpose of propelling the vehicle from place to place andotherwise operating the. material-handling device, the engine (shown inskeleton outline in Fig. being connected to front driving wheels Hmounted upon an axle extending from a transmission housing I4 in any ofthe usual manners. The engine is adapted to be connected to the wheels II through the medium of any usual transmission mechanism under controlof a clutch (not shown) and a gear-shift lever i5, and the wheels areadapted to be locked in a selected position by braking means (not shown)under control of a brake-control mechanism exemplified by the brakelever I6. The vehicle may be steered from place to place by turningthesingle, centrally disposed, rear wheel 12, which is mounted on a fork llsuitably supported on the body of the vehicle I0 and connected to acurved arm I8 having a tiller bar I9 suspended from its forwardlyextending free end. The operator of the vehicle, seated in a seat 20,may at will connect the engine to the front driving wheels through thegear-shift lever 15, release the brakes through the brake lever E6, andsteer the vehicle from place to place by shifting the tiller l9. It isto be appreciated that other forms or styles or designs of automotivevehicle may be substituted for the one herein illustrated withoutdeparting'from my invention, or that the machine could comprise asemistationary, platform-mounted device without departing from theinvention.

The machine comprises a substantially vertical tower, generallyindicated by the numeral 25,-;including spaced upright angle bars 26 andZlextending from a point near the ground adjacent the front of themachine to a suitable elevation above-the body of the machine. The anglebars 26 and 27 comprise vertical guiding means f or guidi ng a carriage30 adapted to be raised and: lowered along the tower, the carriage beingprovided with vertically spaced, flanged wheels 3| and 32 adapted toengage the opposite faces of the laterally disposed flanges of the bars25 and 27, there being a pair of such wheels mounted ateach side of thecarriage, each pair engaging one .of the upright guide bars. The barsare laterally braced by suitable cross members 34 at vertically spacedpoints and by a top cross member 35 adjacent the top of the tower. Thetower also comprises members bracing the tower against movementlongitudinally of the vehicle including members 36, 37 and 38 suitablyattached to the body of the machine and at spaced vertical points to theupright bars 26 and 21.

The carriage 30 comprises side plates 40 upon which the guide wheels 3and 32 are mounted and a substantially horizontal flange 4| extendingbetween the plates 40 at a point near the top edges thereof. The lowerextremities of the plates 40 extend forwardly and carry pintles 42 uponwhich a material-handling device, such as a,scoop 43, is pivotallyattached to the carriage. The material-handling device is mounted in anoff-center relationship so that the center of the gravity thereof isforwardly of the pivotal mounting provided bypintles 42 so that theforce of gravity may cause the material-handling device to tip forwardto an inclined scooping position as indicated in skeleton outline inFig. 3, or dumping position as shown in dash lines in Fig. l.

A pulley 45 is mounted upon suitable journals (not shown) attached tothe cross plate 4!, the pulley being rotatable about an axistransversely of the longitudinal center line of the machine and beingsuitably protected by a guard 45 extending above the plate 4|. Beneaththe pulley 45 there is a second pulley 48 mounted upon a horizontaltransverse axle at a point slightly to the rear of the axle of pulley45, and a third pulley 49 is mounted upon a transverse axle extendingbetween plates 50 and 5| depending from the cross member'35 near the topof the tower, the pulleys 45, 48 and 49 lying substantially in the planeof the longitudinal axis of the machine. A main cable has one endattached to a suitable clamp 56 mounted upon the rear wall of thematerial-handling device 43 at a point spaced from, and preferablyabove, the pivotal mounting thereof. The cable 55 passes through anopening in the rear wall of the scoop, about the pulley 45, then downand around the pulley 48, up and around the pulley 49, and down to adrum device mounted upon an axle 6| extending transversely of themachine, the axle being journaled in the longitudinal side platesthereof and a central, longitudinally extending plate 52. V

The drum 6B is keyed to the shaft SI which is adapted to be rotated by asprocket gear 63 and a sprocket chain 64 passing about a sprocket gear65 mounted upon a transverse axle 66 suit-' ably mounted within the bodyof the machine.

The axle 66 is connected through a worm and gear device 5'! to a shaft68 extending longitudinally of the machine. The shaft 58 at its rear endcarries one-half of a universal joint 69, the other half of which iscarried by a sub:

stantially longitudinally aligned shaft 18 journaled in a journal Hsuitably supported in the machine. The forward end of shaft it is fixedto a grooved collar 12 engaged by the pivot pins of a gimbal 13 which ispivotally attachedto one arm 15 of a toggle device having a second arm75 pivotally attached to a boss on the journal "H. i A

toggle control lever 11 is pivotally attached to the pivotally joinedends of levers l5 and I6, ex-' tends to rock the bell crank 18 to theposition shown in Fig. 6 so as to cause the center joint of the toggledevice to pass over-center in a clutch-releasing directionas'illustrated in full line in Fig. 6. The rearward end of shaft 10carries a cone clutch member 85 adapted to be received in andclutchingly engage a conical cavity in the end surface of aplural-sheaved outline in Fig. 6 causes shifting of the shaft Ill in arearward direction, such shifting being permitted by a splinedconnection (not detailed) of shaft 19 with the half of the universaljoint pf t'o'n' ifs gar-mm and the lver tnd's tfd stay th re "dfihatmarigjafl force i s necessa ry t b i'r'ip'Y h i' of the other positions.The level will other end thereof being passed about the drum device I38in the opposite direction of winding from that of cable I35. the brakedrum 38 are affixed to each other and journaled for loose rotation aboutthe shaft 6!. Therefore, as the carriage 40 mounts the tower the cablel35 will be unwound from the drum device and the cable I40. will bewound thereon, and vice versa. The braking of the drum device by thebrake band l2il arrests the carriage at any preselected position ofmovement vertically. of the tower.

Operation.'l"he operation of the present invention will be described inregard to a machine fitted with a scoop as illustrated. It is to beappreciated that the same operations may b performed with any other typeof material-handling device. The operator may move the machine about bythe normal use of the gear-shifting device exemplified by the lever l5,and the wheels may be locked by the brake device exemplified by thebrake lever I5. Assuming that the carriage is-at its lowermost positionwith the limiting members I05 and-Hi9 in engagement, the operator mayrelease the brake band I9! by moving the lever 9!! forward, thus causingth scoop 43 to tip forwardly and downwardly under the efiect of gravity.Since the brake band 10! no longer holds the shaft 6| against rotation,the cable 55 will unwind from the drum 6!! and will be extended to thedotted'line position shown in Fig. 3. Thereupon the operator may mov thevehicle forward into piled materials, at the same time shifting thelever 90 rearwardly to engage the cone clutch device. The slack is takenup in the The drum device I38 and cable 55, the cable first raising thescoop 43 to its material-carrying or upright position, and thereafter,as the scoop comes into abutting relation with adjacent portions of thecarriage 4|, raising the carriage and scoop along the tower to thepreselected position. For such raising movement the brake band I29 isreleased so that the drum device I38 rolls freely on the shaft 6| andwinds the cable 140 thereon whil permitting unwinding of the cable l35.At the proper elevation of the scoop thebrake band l29 may be set toarrest the carriage at its preselected point or the lever 90 shifted torelease the clutch and set the brake lfll. Thereafter the operator may,if

desired, move the vehicle to any other selected position for dumping theload. On arriving at such a position the transmission lever 15 isshifted to neutral, the brake 16 set, and dumping of the load achievedby loosening the brake band l0! under control of the lever 90. brakeband I29 remains set the carriage cannot move vertically but the scoop43 will tip to its inclined position to dump the load either on theground or at some elevated-point, such as a concrete trough, boxcar orbuilding scaffold. Thereafter lever 99 is shifted to clutch-engagingposition whereupon the scoop will first be raised to its uprightposition and then the carriage will be raised to a further point unlessprevented from doing so by the trip device including cable HIE whichautomatically releasesthe clutch and sets the brake band NH. Theoperator may, if desired, release the brake band I29 and move the lever90 slightly forward, whereupon the carriage and scoop in the uprightposition will be lowered to the bottom of the tower due to the weight ofthe carriage and scoop overcoming the frictional force of the brake bandM I Having illustrated and described a preferred embodiment which theinvention may assume it Since the is tobe appreciated that variousmodifications in detail and arrangement thereof may be achieved. Allsuch modifications as come within the true spirit and scope of theappended claims are to be considered a part of our invention.

We claim:

1. A material-handling machine comprising a tower, a carriage guided formovement on said tower, means for raising and lowering said carriagealong said tower comprising an engine and cable movable thereby, amaterial-handling device, such as a scoop, pivotally mounted on saidcarriage in ofi-center relation so as to be movable to a dumping orscooping position by the force of gravity, guiding means on saidcarriage about which said cable is passed, means for clamping an end ofsaid cable to a portion of said material handling device at a pointspaced from the pivotal mounting thereof whereby slack in said cablewhen said carriage is arrested permits movement of vsaidmaterial-handling device to scooping or dumping position and tighteningof said cable first causes raising of said material-handling device toan upright or material-carrying position and thereafter causes raisingof said carriage along said tower, a clutch for connecting said cable tosaid engine, a brake for arresting said cable, a lever, means connectingsaid lever to said clutch and to said brake for substantiallysimultaneously engaging said clutch and disene gaging said brake uponmovement of said lever to one position and for disengaging said clutchand engaging said brake upon movement of said lever to a secondposition, and means'automatically to disengage said clutch and engagesaid brake as said carriage. arrives at a preselected position on saidtower. 2. An automotive vehicle having a tower mounted thereon, acarriage guided for movement along said tower, means connecting theengine of said vehicle to said carriage for raising and lowering italong said tower comprising a cable, a material-handling devicepivotally supported on said carriage in off-center relation so as to bemovable to an inclined position by the force of gravity, guiding meanson said carriage about which said cable is passed, and means clamping anend of said cable to a portion of said material-handling device at apoint spaced from the pivotal mountin thereof wherebyslack in said cablepermits movement Of said device to. its inclined position'and tighteningof said cable first causes elevation of said device to an upright ormaterial-carrying position and thereafter causes raising of saidcarriage along said tower, said means connecting the engine of saidvehicle to said carriage including a clutch and a brake, a manual leveroperatively connected to said clutch, and means interconnecting said,

clutch and said brake for opposed functioning whereby when said clutchis engaged said brake is released and vice versa, said interconnectingmeans including a spring toggle device whereby said clutch is held inengagement.

3. An automotive vehicle having a substantially vertical tower mountedthereon, a carriage guided for vertical movement along said tower, meansconnecting the engine of said vehicle to said carriage for raising andlowering it along said tower comprising a cable, a material-handlingdevice, such as a scoop, pivotally supported on said carriage in offsetrelation so as to be movable to a dumping or scooping position by theforce of gravity, guiding means on said carriage about which said cableis passed, means clamping an zi ea on 9 end 10f sai cable :to a portionof said materialhandling device atta ,lpoir tispaced from the pivotal munt ng the eof whereby slack in said cable pers mits movement of saiddevice to scooping or dumping position and tightening of said cablefirst oauses elevation of said device to an upright or material-carryingposition and, assoonas-sa-i device is brought .intdabuttin'greIationwith said carriage, raising of said carriage along said tower,

said means connecting the 'engine'of said vehiclemeans and operableautomatically to disengage said clutch and engage said brake as saidcarr-iage approaches the top of said tower.

:4. vA material-handling machine comprising a substantially verticaltower, "a carriage guided 'forvertical movement on said tower, means forraising and lowering said carriage along said tower comprising a cable,a material-handling device-such as a scoop, 'pivotally mounted'onsaidcarriage in offset relation so :as to be movable toa dumping or scoopingposition by the force of gravity, guiding means on said carriage aboutwhich said cable is passed, means .for clam-ping an end of said cable toa portion of said materialhandling device at apoint spaced from thepivotal mounting thereof whereby slack in said cable per-v mits movementof said material-handling device to scooping or dumping position andtightening of said cableffi-rst causes raising of said materialhandlingdevice to an upright or material-carrying position and thereafter-causesraising-of said carriage along said tower, a second cable having one endattached to said carriage, #a drum device mounted on said machine andupon which the other end of said second cable is wound, a third cablehaving one end attached to said carriage and its other end wound 'u-ponsaid drum device in a direction opposite to the direction of winding ofsaid second cable, whereby elevation oi-said carriage winds one of saidsecond and third cables upon said drum device and unwinds the other fromsaid drum device and "vice 'versa, and brakmg means including a manuallever to hold said drum device against rotation.

5. A material-handling machine comprising a tower, a carriage guided formovement on said tower, means for raising and lowering said carriagealong said tower comprising a cable, a material-handling devicepivotally mounted on said carriage in offset relation so asto'b'emovable to an inclined position-by the force of gravity, guidingmeans on said carriage about which said cable is passed, means forclamping an end of said cable to a portion of said material-handlingdevicewhere'by slack in said cable permits 'mO /emeht of saidmaterial-handling device to its in clined position and tightening ofsaid cable first causes raising of said material-handling device to amaterial-handling position and thereafter causes raising of saidcarriage along said tower, other cable means having attachment to saidcarriage, a drum-device mounted 'on'said machine and upon which saidother cable means are wound, other guiding means about which said othercable means passes from said carriage to said drum device, said othercable means including portions wound in opposite directions upon saiddrum device whereby elevation of said carriage winds one portion uponsaid drum device and unwinds another-portion from said drumder vice andvice versa, and braking means to hold said drum device'a ainst rotationat any selected, v

position.

6. -An automotive vehicle having a substantially vertical'tower mountedthereon, a carriage guided for vertical movement along said tower, meansconnecting the'eng-ine of said vehicle to said .car-.- r-iage forraisingand lowering it-along said tower comprising a cable, amaterial-handlingdevice,- such as a $6001 ipivotally supported on said03,1"!

riage in oiTset relation so as to be movable toga dumping or scoopingposition by the force of gravity, guiding means on said :ca-rr-iageabout; which said cable is passed, means clamping an end of said cableto a portion of said materials:- handling deviceata point spaced fromthe pivotalmounting thereof whereby-slack in said cableiper-rmitsmovement of said device to scooping on dumping position and tighteningof said cable; first causes elevation-of said device toanuprightormaterial-carrying position and, as soon as said device isbrought into abutting relation withsaid carriage,;raising-of saidcarriage along said tower said means connecting the engine of saidvehicle to said carriage including a clutch anda brake, a; manual leveroperativel-y-connected to saidclutol i means interconnecting saidclutchand said brake; for opposed functioning whereby when saidclutc isengaged said brake is released and vice verso";- said interconnectingmeans including an overs: center toggle device whereby said clutch isheld;

in'engagement; a trip device connecting said carriage to saidinterconnecting means and operable automatically to disengagesaid-clutch and-engage saidbrake as said carriage approaches a -selecled position on said tower, a secondcable having one end attached tosaid carriage, a drum device mounted on said machine and upon which theother end of said second cable is wound, and athird cable havingone endattached to said-care riage and "its other end wound upon saiddrumdevice in 'a direction opposite to the direotion of winding of saidsecond cable, whereby elevation of said carriage winds said second cableupon said drum device andfunwinds said third cable from said drum deviceand vice versa, and braking means to hold said drum device against roe.

tation.

Fl. automotive vehicle having a tower, mounted thereon, a carriageguided for 'move fr men-t along said tower, means connecting the engineof said vehicle tosaid carriage for raising and lowering it along saidtower comprising a cable, .a material-handling device pivotally SL113?ported :on said carriage vsoft-center relation so as to :be movable to alowered position by the 1 force of gravity, guiding means on saidcarriage.

about which said cable is passed, means attache ing an end of said cableto a portion of said material-handling device whereby slack in saidcable permits :movement of said device to its his clined position andtightening of said cable first causes elevation of .said device to anuprightposie tion and thereafter causes raising of said carriagealongsaid tower, said means connecting the en-m gine :of said vehicle .tosaid carriage including a clutch, a manual ;=lever .operativelyconnected to:

said clutch, means including a toggle device whereby said clutch is heldin engagement or disengagement, a trip device connecting said carriagetosaid toggle device and operable automatically to disengagesaidclutchas said carriage approaches a selected position on said tower,

a second cable having one end attached to said second cable uponsaiddrum device and unwinds said third cable from said drum device andvice versa, and braking means including a second manual lever toholdsaiddrum device against rotation. I

- 8. In a material-handling machine, a tower, a carriage movablesubstantially vertically of said towena pulley near the top of saidtower, a second pulley mounted on said carriage, an engine associatedwith said machine, a scoop or the like pivotally mounted on saidcarriage so as to be movable to' lowered or scooping position by theforce of gravity, a cable attached at one end to said scoop, passedabout said pulleys, and releasably connected to said engine at its otherend, said cable'being operative, therefore, upon being operativelyconnected to said engine'first to elevatesaid scoop from lowered orscooping position to ail-upright or material carrying position andthereafter-to raise said carriage and said scoop along said tower, asecond cable having one end attachedto said carriage, a drum devicemounted on said machine and upon which the other end of said secondcable is wound, guiding means near the top of'said tower about whichsaid second cable passes from said carriage to said drum device, a thirdcable having one end attached tosaid carriage and its other end woundupon said drum device, other guiding means near the bottom" of saidtower about which said third cable passes from said carriage to saiddrum device, said second and third cables being wound upon saiddrum/idevice .in opposite directions whereby elevation "of said carriagewinds one upon said drum device and unwinds the other from said drumdevice and vice versa, and manually operable braking'means to hold saiddrum device against rotation. f

9. In a material-handling machine, a tower, a carriage movable alongsaid tower, a pulley near the top of said tower, a second pulley mountedon said carriage, an engine associated with .said machine, amaterial-handling device pivotally mounted on said carriage so as to bemovable to i an inclined position by the force of gravity, a

cable attached at one end to said device. passed 7 about said pulleys,and releasably attached to said engine at its other end, said cablebeing operative, therefore, upon being engaged to said engine first toelevate said device from its inclined position to an upright ormaterial-carrying position and. thereafter to raise said carriage anddevice along said tower, 'a second cable having one end at tached tosaid carriage, a drum device mounted on said machine and upon which theother end of said second cable is wound, guiding means near the top ofsaid tower about which said second cable passes from said carriage tosaid drum device, a third cable having-one end attached to said carriageand its other end wound upon said drum device, other guiding means nearthe bottom of from said carriage to said drum device, said second andthird cables being wound upon said drum device in opposite directionswhereby elevation of said carriage winds one upon said drum device andunwinds the other from said drum device and vice versa, and manuallyoperable braking means to hold said drum device against rotation.

10. A material-handling machine comprising-a tower, a carriage guidedfor. movement on said tower, means for raising and lowering saidcarriage along said tower comprising a cable, a material-handling devicepivotally mounted on said carriage in offset relation so asto be movableto an inclined position by the force of gravity, guiding means on saidcarriage about which said cable is passed, means for clamping an end ofsaid cable to aportion of said material-handling device whereby slack insaid cable permits movement of said material-handling device to its inclined position and tightening of said cable first causes raising ofsaid material-handling device to a material-handling position andthereafter causes raising of said carriage along said tower, other cablemeans having attachment to said carriage, a drum device mounted on saidmachine and upon which said other cable means are wound, and otherguiding means about which said other cable means passes from saidcarriage to said drum device, said othercable means including portionswound in opposite directions upon said drum device whereby elevation ofsaid carriage winds one portion upon said drum device and unwindsanother portion from said drum device and vice versa. 7

11. In a material-handling machine an engine, a tower, a cable guided onsaid tower, a releasable, clutch for connecting said cable tosaidengine, a brake for arresting said cable, a manual lever, meansinterconnecting said lever with said brake and said clutch includingportions opera tive to release said brake and engage said clutch whensaid lever is shifted to a first position, to release said clutch andengage said brake when said lever is shifted to a second position, andto release said brake without afiecting said clutch when said lever-isshifted to a third position from said second position, amaterialelevating device connected to said cable and raised therebyalong said tower when said lever is in said first position, andautomatic means to move said lever from said first position to saidsecond position when said elevating device reaches a preselectedelevation.

- EDDIE B. vWAGNER.

HAROLD A. WAGNER.

REFERENCES CITED The following references are of record in the file ofthis patent:

Lull Jan. 11, 1949

